316 



Planning and Construction of Cow-Sheds. 



[July, 



to a scale of half an inch to the foot. For the purpose of showing 

 the construction and interior fittings more clearly only half of 

 each model has been completed. 



Plans and photos of the two models are here given in Fig. 3 

 (Scheme A), and Fig. 4 (Scheme B). 



The merits and demerits of the head to head and tail to tail 

 systems are so well known it is hardly necessary to recapitulate 

 them, but it may be mentioned that where the herd is sufficiently 

 large to require the services of two men there are certain advan- 

 tages in the tail to tail method, in which case each man has the 

 undivided use of a feeding passage, and can work independently 

 of the other, while there must be less disturbance among the 

 cattle when, feeding is taking place. While it is realised that 

 the special feeding conditions obtaining at Hucknall may not 

 apply in all cases, and silos may not be required, the arrange- 

 ment of the mixing floor at one end of the building is adhered to 

 and is equally applicable to either method of arrangement. It 

 has, however, been extended right across the building from wall 

 to wall with storage floors over at each side which can be filled 

 from a loaded cart standing in the centre gangway. The mixing 

 floor shown on the plans is restricted to the width of one bay, 

 but in practice it would probably be found necessary to increase 

 this to two bays for a herd of 40 to 50 cows. 



The silos, if required, can be discharged in convenient places 

 and a lean-to is shown in Scheme A, where a cart-load of fodder 

 may be placed over night or at the week end. 



A comparison of the photographs shows that the tail to tail 

 method, Scheme B, lends itself to a simpler and more efiicacious 

 system of construction, lighting and ventilation ; even in the 

 photographs of the models it is clear that this building is better 

 lighted than the other, and it is a noteworthy fact that the roof 

 requires one-third less timber, a material advantage in cost. 



General Construction. — The Hucknall principle of construction 

 has been adhered to, namely, the use of small scantling timber, 

 but the pitch of the roof in both schemes has been made to suit 

 slating or corrugated asbestos sheeting. The main variation 

 has been made in the method of top lighting. 



In both schemes a continuous clerestory has replaced the sepa- 

 rated raised skylights of the Hucknall plan, thus admitting light 

 with better distribution to the whole building. The two Schemes 

 A and B vary somewhat from each other, the variation being due 

 to the different type of roof truss used, this in turn being 

 governed by the different arrangement of the stalls. In Scheme A 



